HSMWorks provides a unique way to drill conical faces such as countersinks. When you select a conical face, the drill depth is automatically adjusted so that the tool tip touches the end of the conical face:

Autodesk Inventor HSM and HSMWorks are trademarks of Autodesk, Inc. SolidWorks is a registered trademark of Dassault Systemes SolidWorks Corp. Other brand and product names are trademarks of their respective owners.